RANKING · 2020 CENSUS · 56 SHOWN OF 56

Highest Puerto Rican population share, California counties · 2020

California counties ranked by the share of all residents who are Puerto Rican origin (2023 American Community Survey). A concentration measure: Puerto Rican residents as a percentage of total population. This list covers the 56 counties in California that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

RELATEDLargest Mexican population Highest Mexican population share Largest Puerto Rican population Largest Cuban population Highest Cuban population share Largest Dominican population

YEAR2010 2020 2024

RANKPLACESTATEPOPPUERTO RICAN SHAREVS 2000

01San Benito County, CACA70,0821.3%–

02Solano County, CACA455,3761.1%–

03Yuba County, CACA88,6910.9%–

04San Bernardino County, CACA2,224,0910.9%–

05Contra Costa County, CACA1,170,0700.9%–

06Alameda County, CACA1,636,6300.8%–

07Sacramento County, CACA1,618,4600.8%–

08San Diego County, CACA3,282,2480.8%–

09San Joaquin County, CACA823,8150.8%–

10Placer County, CACA442,0810.7%–

11Riverside County, CACA2,544,9160.7%–

12Stanislaus County, CACA557,7190.7%–

13Mariposa County, CACA16,9180.7%–

14Napa County, CACA132,9490.6%–

15Plumas County, CACA18,5830.6%–

16Monterey County, CACA433,7290.6%–

17San Francisco County, CACA826,0790.6%–

18Kern County, CACA927,0680.5%–

19Del Norte County, CACA26,4100.5%–

20San Mateo County, CACA743,5680.5%–

21Santa Clara County, CACA1,914,3910.5%–

22Los Angeles County, CACA9,694,9340.5%–

23Sutter County, CACA98,7870.5%–

24Sonoma County, CACA486,4440.5%–

25El Dorado County, CACA192,3230.5%–

26Tuolumne County, CACA53,1600.5%–

27Yolo County, CACA224,4100.5%–

28Amador County, CACA41,8760.4%–

29San Luis Obispo County, CACA282,3670.4%–

30Santa Barbara County, CACA442,0650.4%–

31Ventura County, CACA830,8510.4%–

32Mendocino County, CACA88,1220.4%–

33Kings County, CACA154,3270.4%–

34Orange County, CACA3,149,5070.4%–

35Imperial County, CACA181,4110.4%–

36Humboldt County, CACA131,6470.4%–

37Nevada County, CACA101,9110.4%–

38Fresno County, CACA1,035,4560.4%–

39Butte County, CACA209,2110.4%–

40Shasta County, CACA181,6480.3%–

41Siskiyou County, CACA42,0130.3%–

42Santa Cruz County, CACA258,8520.3%–

43Tulare County, CACA485,1460.3%–

44Marin County, CACA253,6940.3%–

45Glenn County, CACA28,1410.3%–

46Madera County, CACA167,9270.3%–

47Calaveras County, CACA46,6050.2%–

48Merced County, CACA297,2600.2%–

49Inyo County, CACA18,1580.2%–

50Colusa County, CACA21,8360.2%–

51Lake County, CACA67,7720.1%–

52Modoc County, CACA8,4260.1%–

53Mono County, CACA12,5050.1%–

54Tehama County, CACA64,6650.1%–

55Lassen County, CACA28,1170.1%–

56Trinity County, CACA15,7200.0%–

SHOWING 1–56 OF 56

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UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES